package hehe.container.util;

/**
 * Created by xfw on 17-3-31.
 */
public class ContainerUtil
{

    public static String upperCase(String str)
    {
        char[] ch = str.toCharArray();
        if (ch[0] >= 'a' && ch[0] <= 'z') {
            ch[0] = (char) (ch[0] - 32);
        }

        return new String(ch);
    }
}
